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Fasting in hens affects thyroid hormones, which regulate feather and hair growth.

A new genetic change causing early stop in the androgen receptor gene was found in a patient with androgen insensitivity syndrome.

Hormones like androgens, estrogen, thyroid hormones, and stress hormones can contribute to hair loss, and treatments target these hormonal imbalances.

Testosterone affects blood vessel relaxation in hypertensive rats.

Genes and epigenetic changes are important in the development of Polycystic Ovary Syndrome.

Vitamin A deficiency changes cattle hair structure, while pregnancy may improve it, suggesting hair can indicate cattle health.

New tools show that in fish, NPY increases feeding and somatostatin decreases it.

Lipid Accumulation Product and Free Androgens Index are effective for assessing fatty liver disease risk in women with Polycystic Ovary Syndrome.

Taking 100 mg of DHEA daily for 16 weeks did not change metabolic and reproductive health significantly but increased certain ovarian markers with minimal side effects.

Most adult females with acne do not have hormonal imbalances, but some show signs of excess male hormones.

Removing a testicular tumor in a dog reduced its aggressive behavior and skin problems.

Care for gender-dysphoric Veterans can be improved with a consistent, team-based approach.

Treatment restored normal sexual characteristics and blood condition in a patient with testicular cancer.

Doctors vary in how they initially test for PCOS, but most agree on using oral contraceptives and lifestyle changes as first treatments.

Alopecia in animals can be hereditary, congenital, or acquired, with treatments and outcomes varying widely.

Hormones and signaling pathways control sebaceous gland function and could help treat acne.

New treatments are needed for PCOS that target its genetic, hormonal, and metabolic causes.

The document concludes that identifying the cause of amenorrhea is crucial for proper treatment.

Amenorrhea is when a woman doesn't have periods, with primary amenorrhea starting by age 15 or within five years of breast development, and secondary amenorrhea when periods stop for three months. It affects 3-4% of women not pregnant, breastfeeding, or in menopause, mainly due to polycystic ovary syndrome, hypothalamic amenorrhea, hyperprolactinemia, and ovarian failure.

The document suggests that there might be an autoimmune link between polycystic ovary syndrome and Graves' disease.

The 2023 guideline for PCOS suggests using updated diagnostic criteria, assessing related health risks, and recommends lifestyle changes and specific treatments for symptoms and fertility issues.

The testes produce important hormones like testosterone and others that play key roles in male body functions.

GnRH analogues are effective for diagnosing and treating female androgen excess, offering a non-surgical option.

Levothyroxine is less effective in men with early-onset male-pattern baldness.

Herbal treatments can help manage PCOS symptoms.

A pineal tumor caused a boy's early puberty, which changed from peripheral to central after treatment.

Nanotechnology improves Clomiphene citrate's effectiveness and reduces side effects for treating ovulatory disorders.

Melatonin affects skin and hair color and protects skin cells, with potential benefits for hair growth and skin health.

Estrogen can temporarily slow down hair growth but this can be reversed.

Dihydrotestosterone makes arteries stiffer in female mice by reducing estrogen receptor expression.